You're losing. Badly. Your team looks hopeless. You're on the verge of getting relegated. These are desperate times, requiring desperate measures. You know what you have to do. You have to dive, wildly. Really convince the ref.
You forgot that you're in your own penalty area, not the opponent's. That you won't draw a penalty kick for this. You don't even bother to sell the fake contact after flopping. You walk away, ashamed of yourself.